TPS6521845

• Three Adjustable Step-Down Converters With Integrated Switching FETs (DCDC1, DCDC2, and DCDC3):
  • DCDC1: 1.1-V Default, up to 1.8 A
  • DCDC2: 1.1-V Default, up to 1.8 A
  • DCDC3: 1.2-V Default, up to 1.8 A
  • VIN Range From 2.7 V to 5.5 V
  • Adjustable Output Voltage Range 0.85 V to 1.675 V (DCDC1 and DCDC2)
  • Adjustable Output Voltage Range 0.9 V to 3.4 V (DCDC3)
  • Power Save Mode at Light Load Current
  • 100% Duty Cycle for Lowest Dropout
  • Active Output-Discharge When Disabled
• One Adjustable Buck-Boost Converter With Integrated Switching FETs (DCDC4):
  • DCDC4: 3.3-V Default, up to 1.6 A
  • VIN Range from 2.7 V to 5.5 V
  • Adjustable Output Voltage Range from 1.175 V to 3.4 V
  • Active Output-Discharge When Disabled
• Two Low-Quiescent Current, High Efficiency Step-Down Converters for Battery Backup Domain (DCDC5, DCDC6)
  • DCDC5: 1-V Output
  • DCDC6: 1.8-V Output
  • VIN Range from 2.2 V to 5.5 V
  • Supplied From System Power or Coin-Cell Backup Battery
• Adjustable General-Purpose LDO (LDO1)
  • LDO1: 1.8-V Default up to 400 mA
  • VIN Range from 1.8 V to 5.5 V
  • Adjustable Output Voltage Range from 0.9 V to 3.4 V
  • Active Output-Discharge When Disabled
• Low-Voltage Load Switch (LS1) With 350-mA Current Limit
  • VIN Range From 1.2 V to 3.6 V
  • 110-mΩ (Max) Switch Impedance at 1.35 V
• 5-V Load Switch (LS2) With 100-mA or 500-mA Selectable Current Limit
  • VIN Range From 4 V to 5.5 V
  • 500-mΩ (Max) Switch Impedance at 5 V
• High-Voltage Load Switch (LS3) With 100-mA or 500-mA Selectable Current Limit
  • VIN Range From 1.8 V to 10 V
  • 500-mΩ (Max) Switch Impedance
• Supervisor With Built-in Supervisor Function Monitors
  • DCDC1, DCDC2 ±4% Tolerance
  • DCDC3, DCDC4 ±5% Tolerance
  • LDO1 ±5% Tolerance
• Protection, Diagnostics, and Control:
  • Undervoltage Lockout (UVLO)
  • Always-on Push-Button Monitor
  • Overtemperature Warning and Shutdown
  • Separate Power-Good Output for Backup and Main Supplies
  • I²C Interface (Address 0x24) (See Timing Requirements for I²C Operation at 400 kHz)

The TPS6521845 is a single chip power management IC, specifically designed to support both portable (Li-Ion battery) and non-portable (5-V adapter) applications.The device is characterized across a –40°C to +105°C temperature range, making it suitable for a wide range of industrial applications.